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Finding the Fourth Proportional to 610,555.57, 842,618.43 and 338,711.04

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Solution

The fourth proportional to 610,555.57, 842,618.43 and 338,711.04 is: 467,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,555.57 : 842,618.43 = 338,711.04 : x
  2. Step 2: Convert to fraction form
    610,555.57/842,618.43 = 338,711.04/x
  3. Step 3: Cross multiply
    610,555.57x = 842,618.43 × 338,711.04
  4. Step 4: Simplify right side
    610,555.57x = 285,404,164,748.47
  5. Step 5: Solve for x
    x = 285,404,164,748.47/610,555.57
  6. Step 6: Final answer
    x = 467,449.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.